From the list given below, select the word(s) required to correctly complete blanks (i) to (v) in the following passage:
[ammonia, ammonium, carbonate, carbon dioxide, hydrogen, hydronium, hydroxide, precipitate, salt, water.]
A solution X turns blue litmus red, so it must contain (i) _____ ions, another solution Y turns red litmus blue and therefore, must contain (ii) ______ ions. When solutions X and Y are mixed together, the products will be a (iii) _____ and (iv) ____. If a piece of magnesium were put into solution X, (v) _____ gas would be evolved.

Explanation

To solve the question, we will fill in the blanks in the passage step by step based on the properties of acids and bases.

### Step-by-Step Solution:

1. **Identifying Solution X**:
- The passage states that "A solution X turns blue litmus red."
- This indicates that solution X is acidic in nature.
- Acids produce hydronium ions (H₃O⁺) in solution.
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